Blue Green Yellow Orange Red

White-Violet-Blue-Green-Yellow-Orange-Red-Brown-Black... 

White—> Violet—>Blue— Green—>Yellow— Orange—>Red—>Brown— Black... 

As one finds from the analyses of the daylight, it consists of different wavelengths of colors (violet, indigo, blue, green, yellow, orange, red [VIBGYOR easy to remember ]) ... 

SPECTRO INSTRUMENTS. Spectro is used as a prefix for a wide assortment of analytical instruments. Spectro is derived from spectrum, which originally referred to the component colors that make up visible light, the so-called rainbow colors of violet, indigo, blue, green, yellow, orange, and red. A very simple device made up of a glass prism to break up sunlight into color bands is referred to as a spectroscope. Much more sophisticated instruments are available for manual manipulation and observation, which still rely on this basic, simple principle these are termed visual spectroscopes, and the field is called visual spectroscopy. 

FIGURE 20.14 The absorption spectra of the dyes beta-carotene and indigo differ in the visible region and hence have different colors. The letters stand for the colors of the light at particular wavelengths (violet, blue, green, yellow, orange, and red). 

Filter Set/ Channel Blue Green Yellow Orange (Used with Five-Dye Sets) Red (Used as Internal Size Standard)... 

OIL SOLUBLE AZO DYES The oil soluble, water-iasoluble, azo dyes dissolve ia oils, fats, waxes, etc. Generally, yellow, orange, red, and brown oil colors are azo stmctures and greens, blues, and violets are primarily anthraquiaones (see Dyes, anthraquinone). Blacks are usually nigrosiaes and iaduhnes of the aziae type (see Azinedyes). An example is Oil Red [85-83-6] (127) (Cl Solvent Red 24 Cl 26105). Uses iaclude the coloring of hydrocarbons, waxes, oils, candles, etc. 

P = parent ion detected in mass spectrum. Color of complex p-y, pale yellow o, orange o-b, orange-brown c, colorless w, white d-g, deep-green b-g, blue-green r-b, red-brown d-p, dark-purple 1, lemon r, red g, green. H NMR data are available on all the compounds and P NMR on all the Pt-phosphine complexes 231). 

Chromatogram zones of different colors (yellow, orange, red, brown, green, blue) are formed - mainly within a few minutes even before heating - on an almost colorless to slightly yellow background [2, 4, 21, 22, 52-54],... 

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